WO2017099505A1 - 골프공 커버 코팅용 조성물 및 이를 사용한 골프공 - Google Patents
골프공 커버 코팅용 조성물 및 이를 사용한 골프공 Download PDFInfo
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- WO2017099505A1 WO2017099505A1 PCT/KR2016/014421 KR2016014421W WO2017099505A1 WO 2017099505 A1 WO2017099505 A1 WO 2017099505A1 KR 2016014421 W KR2016014421 W KR 2016014421W WO 2017099505 A1 WO2017099505 A1 WO 2017099505A1
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- golf ball
- composition
- ball cover
- resin
- coating
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/06—Polyurethanes from polyesters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
Definitions
- the present invention relates to a golf ball cover coating composition and a golf ball using the same.
- a golf ball is a one-piece golf ball having a single structure, a two-piece golf ball having a core and a cover surrounding the core, and a three-piece golf ball having a three-layer structure having a double core and a cover, depending on the structure.
- Three-piece golf ball with a three-layer structure consisting of a core and a double cover, a four-piece golf ball consisting of one core and a three-layer cover, a four-piece golf ball consisting of a double core and a double cover and a triple core and Four-piece golf ball consisting of one cover, etc. are classified.
- an important factor that determines the result of the golf game is the accuracy of the flying distance and landing point when hitting the driver and the accuracy of putting on the green, where the player needs a high concentration.
- Golf balls generally used include a high reflectivity and high gloss coating layer (i.e., a glossy coating) on the surface of the golf ball, so that outdoor light may be reflected from the golf ball surface to the player when used outdoors. This impedes the player's concentration, making it difficult for the player to hit the exact spot on the golf ball and making it difficult for the player to maintain a certain level of performance by varying the degree of external light reflected by the player depending on the position of the sun and the attitude of the player. .
- a high reflectivity and high gloss coating layer i.e., a glossy coating
- Golf ball cover coating composition according to the present invention for solving the above problems is a composition comprising a main agent and a curing agent,
- the subject matter includes modified polyester polyol resins and inorganic particles,
- the curing agent and the composition for golf ball cover coating including an isocyanate resin having at least two isocyanate groups
- a golf ball made using the golf ball cover coating composition is provided.
- the coating layer formed from the composition may have a low reflectance against external light and a low gloss. Accordingly, the golf ball including the coating layer has almost no gloss on the surface, thereby reducing the influence of external light on the player when used outdoors and improving the concentration and play power of the player.
- the composition for coating the golf ball cover uses a theme including a modified polyester polyol resin having excellent flexibility
- the coating layer formed from the composition is excellent in impact resistance, cut resistance, scratch resistance and rebound elasticity. Accordingly, the golf ball including the coating layer may be less damage to the surface by the external impact, thereby maintaining the flying distance and spin performance of the golf ball regardless of the use time.
- FIG. 1 is a view schematically showing the structure of a golf ball according to the present invention.
- FIG. 2A is a photograph taken of a specimen prepared in Example 1 and Comparative Example 1 using a camera (IXUS 145, Canon). Corresponding to the specimens prepared in Example 1, Comparative Example 1, Example 1 and Comparative Example 1 in the clockwise direction from the upper right.
- Example 2B is a photograph taken of the specimens prepared in Example 2 and Comparative Example 2 using a camera (IXUS 145, Canon). Corresponding to the specimen prepared in Example 2, Comparative Example 2, Example 2 and Comparative Example 2 in the clockwise direction from the upper right.
- 2C is a photograph taken of the specimen prepared in Example 3 and Comparative Example 3 using a camera (IXUS 145, Canon). Corresponding to the specimen in Example 3, Comparative Example 3, Example 3 and Comparative Example 3 clockwise from the upper right.
- 2D is a photograph taken of the specimens prepared in Example 4 and Comparative Example 4 using a camera (IXUS 145, Canon). Corresponding to the specimen prepared in Example 4, Comparative Example 4, Example 4 and Comparative Example 4 in the clockwise direction from the upper right.
- FIG. 3A is a photograph of a golf ball manufactured in Examples 5 and 6 using a camera (IXUS 145, Canon). Corresponding to the golf ball produced in Example 5 and the golf ball produced in Example 6 in order from the left.
- 3B is a photograph of the golf balls produced in Comparative Examples 5 and 6 using a camera (IXUS 145, Canon). Corresponding to the golf ball manufactured in Comparative Example 5 and the golf ball manufactured in Comparative Example 6 in order from the left.
- Figure 4a is a golf ball manufactured in Example 5 with a 9-iron professional athlete after hitting the company logo portion three times at a speed of 75 mph, the surface of the golf ball was photographed using a camera (IXUS 145, Cannon) One picture.
- FIG. 4B is a photograph taken using a digital electron microscope (AM-313, Dino-lite, magnification: ⁇ 10) of a portion indicated by a red circle in FIG. 4A.
- FIG. 4C is a photograph taken using a 3D electron microscope (VK-X200, Keyence, magnification: x100) of a portion indicated by a red circle in FIG. 4B.
- FIG. 1 is a golf ball manufactured in Example 5 with a 9-iron professional athlete after hitting the company logo portion three times at a speed of 75 mph, the surface of the golf ball was photographed using a camera (IXUS 145, Cannon) One picture.
- FIG. 4B is a photograph taken using a digital electron microscope (AM-313, Dino-
- FIG. 4D schematically illustrates a process of measuring the depth of a damaged portion of a portion indicated by a red circle in FIG. 4B using a three-dimensional (3D) electron microscope (VK-X200, Keyence, magnification: x100). The figure shown.
- FIG. 5A shows a golf ball manufactured in Example 7 with a 9-iron, after a professional athlete strikes the company logo portion three times at a speed of 75 mph, and photographs the surface of the golf ball using a camera (IXUS 145, Cannon).
- FIG. 5B is a photograph taken using a digital electron microscope (AM-313, Dino-lite, magnification: ⁇ 10) of a portion indicated by a red circle in FIG. 5A.
- FIG. 5C is a photograph taken using a 3D electron microscope (VK-X200, Keyence, magnification: x100) of a portion indicated by a red circle in FIG. 5B.
- FIG. 5D is a diagram schematically illustrating a process of measuring a depth of a damaged part of a portion indicated by a red circle in FIG. 5B using a 3D electron microscope (VK-X200, Keyence, magnification: x100).
- FIG. 6a shows a golf ball manufactured in Comparative Example 7 with a 9-iron, after a professional athlete strikes the company logo portion three times at a speed of 75 mph, and photographs the surface of the golf ball using a camera (IXUS 145, Cannon).
- FIG. 6B is a photograph taken using a digital electron microscope (AM-313, Dino-lite, magnification: x10) of a portion indicated by a red circle in FIG. 6A.
- FIG. 6C is a photograph taken using a 3D electron microscope (VK-X200, Keyence, magnification: x100) of a portion indicated by a red circle in FIG. 6B.
- FIG. 6D is a diagram schematically illustrating a process of measuring the depth of the damaged portion of the portion indicated by the red circle in FIG. 6B using a 3D electron microscope (VK-X200, Keyence, magnification: x100).
- first and second may be used to describe various components, but the components should not be limited by the terms. The terms are only used to distinguish one component from another.
- the golf ball 10 includes a core 100, a cover 200 formed on the core and including a plurality of dimples 300, and a coating layer 400 formed on the cover, wherein the coating layer 400 is It is formed from the composition for golf ball cover coating.
- the coating layer 400 is It is formed from the composition for golf ball cover coating.
- the golf ball cover coating composition refer to the bar to be described later.
- the golf ball structure may be selected from two pieces, three pieces, four pieces and five pieces.
- the core 100 serves to generate a distance of the golf ball due to the resilience of the core itself when hitting the golf ball.
- the core 100 may be prepared by heating a mixture comprising a base rubber, a crosslinking agent and an initiator using a hot press.
- the base rubber may be a polybutadiene rubber or a mixture of polybutadiene rubber and bismuth.
- the polybutadiene rubber may have a high content of cis bond in the polybutadiene rubber. This is because when the polybutadiene rubber having a high content of the cis bond in the polybutadiene rubber is used as the core material, the resilience of the core required for the golf ball can be improved.
- the bismuth When the bismuth is included in the base rubber as a material having a room temperature expandability of 3 to 3.5%, the bismuth shrinks at a high temperature (for example, a temperature of 100 ° C. or higher) and expands at room temperature to increase the rebound elasticity of the rubber, thereby causing low hardness. Also plays a role in generating high resilience.
- the crosslinking agent may include at least one selected from ⁇ , ⁇ -Ethylenically unsaturated carboxylic acid having 3 to 8 carbon atoms and metal salts thereof.
- the initiators include dicumylperoxide, 1,1-bis (t-butylperoxy) -3,3,5-trimethylcyclohexane, 2,5-dimethyl-2,5-di (t-butylperoxy) hexane and It may include one or more selected from di-t- butyl peroxide.
- the core 100 may have the form of a single layer or multiple layers (eg, bilayer, triple layer).
- the core 100 is covered with a cover 200 including a plurality of dimples 300.
- the cover 200 serves to protect the core 100 from an external environment, and may determine flight characteristics of a golf ball by a plurality of dimples 300 formed on a surface of the cover 200.
- the cover 200 may be manufactured by directly injection molding a cover forming composition comprising a thermoplastic resin, a thermosetting resin, or a thermoplastic rubber on the core 100, or forming a hollow shell-shaped shell from the cover forming composition,
- the core 100 may be manufactured by coating the core 100 with a plurality of shells and compression molding the core 100.
- thermoplastic resin or thermosetting resin may be selected from ionomer resins, polyester resins, polyurethane resins, polyamide resins, and combinations thereof.
- the ionomer resin may be selected from HI-MILAN available from Mitsui Polychemical, ESCOR available from EXXON, HPC and SURLYN available from DUPONT, and combinations thereof.
- the polyurethane resin may be selected from thermoplastic polyurethane resins, thermosetting polyurethane resins, and combinations thereof.
- the thermoplastic rubber may include at least one selected from SBS (Styrene-Butadiene-Styrene) and SEBS (styreneethylene / butylene-styrene triblock copolymer).
- SBS Styrene-Butadiene-Styrene
- SEBS styreneethylene / butylene-styrene triblock copolymer
- the cover 200 may have the form of a single layer or multiple layers (eg, bilayer, triple layer).
- composition for forming a cover may further include an additive selected from a weight adjuster, a dispersant, an antioxidant, a UV absorber, a light stabilizer, a dye, a pigment, and a combination thereof.
- a plurality of dimples 300 are formed on the surface of the cover 200.
- the coating layer 400 is formed on the cover including the plurality of dimples 300.
- the coating layer 400 includes a composition for coating a golf ball cover.
- the coating layer 400 may be formed by coating the golf ball cover coating composition on the cover 200 and drying the composition for 1 to 24 hours at a temperature of 30 °C to 70 °C.
- the coating method of the composition may be a known method, for example, the coating method may be selected from spray coating, spin coating and impregnation method.
- the composition for coating a golf ball cover includes a main agent and a curing agent.
- the subject matter includes modified polyester polyol resins and inorganic particles.
- the modified polyester polyol resin serves as a base resin and is a base of the composition for coating a golf ball cover.
- the modified polyester polyol resin refers to a resin in which a repeating unit derived from a specific monomer is introduced into a main chain of the resin by adding a specific monomer (for example, an elasticity-providing monomer) when preparing the resin.
- the modified polyester polyol resin serves to improve the durability, cut resistance and scratch resistance by providing flexibility and elasticity to the coating layer including the composition.
- the modified polyester polyol resin may include at least one selected from a caprolactone modified polyester polyol, 1,3-butadiene modified polyester polyol, and polytetramethylene glycol modified polyester polyol.
- the caprolactone-modified polyester polyol resin may have a structure including a repeating unit derived from caprolactone in the main chain of the polyester polyol resin.
- the repeating unit derived from caprolactone may be represented by the following Chemical Formula 1, but is not limited thereto.
- the caprolactone-modified polyester polyol resin increases elasticity by introducing repeating units derived from caprolactone into the main chain of the polyester polyol resin, thereby providing a soft texture to the coating layer including the composition and increasing the elasticity of the coating layer. Let's do it.
- the caprolactone-modified polyester polyol resin may include, but is not limited to, 14058 resin available from Dimming Paint Co., Ltd.
- the modified polyester polyol resin may have a weight average molecular weight of 5,000 to 25,000 g / mol, and a hydroxyl group content (OH%) of 1.0 to 5.0 mass%.
- hydroxyl group content may be represented by the following Equation 1:
- the weight average molecular weight of the modified polyester polyol resin is within the above range, elasticity may be imparted to the coating layer including the composition to improve durability and cut resistance.
- the modified polyester polyol resin according to the present invention may have a weight average molecular weight of 11,000 to 12,000 g / mol, and a hydroxyl group content (OH%) of 1.5 to 2.0 mass%.
- the content of the modified polyester polyol resin may be 25 to 85 parts by weight based on 100 parts by weight of the total content of the subject matter.
- the content of the modified polyester polyol resin may be 40 to 70 parts by weight based on 100 parts by weight of the total content of the subject matter.
- elasticity may be imparted to the coating layer including the composition to improve durability and cut resistance.
- the modified polyester polyol resin is a mixture containing a polybasic acid, a polyhydric alcohol, a specific monomer (e.g., an emulsifying monomer) and a solvent is reacted at a temperature of 150 °C for 30 minutes, then the reactor to a temperature of 220 °C It may be prepared by reacting for 4 to 5 hours after the temperature is raised.
- a specific monomer e.g., an emulsifying monomer
- the polybasic acid is an aromatic dibasic acid and esters thereof; And at least one selected from aliphatic dibasic acids and esters thereof.
- the aromatic dibasic acid may include at least one selected from 1,4-cyclohexanedicarboxylic acid, phthalic anhydride, and isophthalic acid.
- the alkyl ester of the aromatic dibasic acid may include at least one selected from dimethyl terephthalate, dimethyl isophthalate, diethyl terephthalate, diethyl isophthalate, dibutyl terephthalate and dibutyl isophthalate.
- the alkyl ester of aliphatic dibasic acid may include at least one selected from alkyl esters of fumaric acid, maleic acid, adipic acid, itaconic acid, gultaconic acid, succinic acid and citraconic acid which are aliphatic dibasic acids.
- the content of the polybasic acid may be 15 to 20 parts by weight based on 100 parts by weight of the total content of the mixture.
- the polyhydric alcohol may include at least one selected from aromatic diols, aliphatic diols, aromatic triols, and aliphatic triols.
- the aromatic diols include polyoxyethylene- (2,0) -2,2-bis (4-hydroxyphenyl) propane, polyoxypropylene- (2,0) -2,2-bis (4-hydroxyphenyl) Propane, polyoxypropylene- (2,2) -polyoxyethylene- (2,0) -2,2-bis (4-hydroxyphenyl) propane, polyoxyethylene- (2,3) -2,2- Bis (4-hydroxyphenyl) propane, polyoxypropylene- (6) -2,2-bis (4-hydroxyphenyl) propane, polyoxypropylene- (2,3) -2,2-bis (4- Hydroxyphenyl) propane, polyoxypropylene- (2,4) -2,2-bis (4-hydroxyphenyl) propane, polyoxypropylene- (3,3) -3,3-bis (4-hydroxy Phenyl) propane polyoxyethylene- (3,0) -2,2-bis (4-hydroxyphenyl) propane and polyoxyethylene- (6) -2,2-bis (4-hydroxyphenyl) propane It may include at least one kind.
- the aliphatic diols are ethylene glycol, diethylene glycol, triethylene glycol, 1,2-propylene glycol, 1,2-propanediol, 1,4-butanediol, 1,4-butenediol, 2,3-butanediol, 1, 5-pentanediol, 2,3-pentanediol, 1,6-hexanediol, 2,3-hexanediol, 3,4-hexanediol, 1,7-heptanediol, dodecanediol, 1,4-cyclohexane It may include at least one selected from dimethanol, 1,4-cyclohexanediol and neopentyl glycol.
- the aliphatic triol may comprise trimethylol propane.
- the specific monomer is introduced as a repeating unit in the main chain of the modified polyester polyol resin to increase elasticity, thereby imparting a soft texture to the coating layer including the composition and increasing the elasticity of the coating layer.
- the polyester polyol resin may have a weight average molecular weight of 6,500 to 7,500 g / mol.
- the polyester polyol resin may include, but is not limited to, 14040 resin available from Dimming Paint.
- the specific monomers may include caprolactone, glycols, polycarbonates, and combinations thereof.
- the caprolactone may comprise Capa TM 2101A available from Perstorp.
- the content of the specific monomer may be 55 to 60 parts by weight based on 100 parts by weight of the total content of the mixture.
- the solvent may include at least one selected from ethyl acetate, butyl acetate, isobutyl acetate, methyl ethyl ketone, methyl isobutyl ketone, diisobutyl ketone, methyl amyl ketone, xylene and toluene.
- the content of the solvent may be 10 to 15 parts by weight based on 100 parts by weight of the total content of the mixture.
- the subject may include inorganic particles.
- the coating layer including the composition including the inorganic particles may diffusely reflect light incident from the outside, thereby reducing the gloss of the golf ball surface.
- the coating layer including the composition including the inorganic particles may be matt.
- the inorganic particles may include silica particles in powder form having an average particle diameter of 1 to 15 ⁇ m.
- the inorganic particles may include silica particles in powder form having an average particle diameter of 1 to 2 ⁇ m.
- the average particle diameter refers to a cumulative average particle size (D50) corresponding to 50% by volume in a cumulative distribution curve having a total volume of 100%.
- the average particle diameter D50 may be measured by a method well known to those skilled in the art, for example, may be measured by a particle size analyzer, or may be measured from a TEM or SEM photograph.
- the number of particles is counted for each size range through data analysis, and the average particle diameter is calculated from the calculation. You can easily get a D50.
- the silica particles may have a specific surface area of 100 to 200 m 2 / g as measured by Brunauer Emmett Teller (BET) method.
- BET Brunauer Emmett Teller
- the silica particles may have a specific surface area of 130 to 180 m 2 / g as measured by the BET method.
- the silica particles may have a specific surface area of 130 to 150 m 2 / g as measured by the BET method.
- the silica particles may have a specific surface area of 150 to 180 m 2 / g as measured by the BET method.
- the matting effect may be insignificant if the specific surface area of the silica particles is less than 100 m 2 / g.
- the viscosity of the solution may be excessively increased or the distance of the golf ball may be reduced due to irregularities of the golf ball surface when preparing a solution including silica particles.
- the silica particles may comprise Nipsil E-220A available from TOSOH.
- the inorganic particles may further include a wax including one or more selected from carnauba wax, montan wax, ester wax, polyethylene wax, polypropylene wax, and fluororesin wax.
- the silica particles may have a particle surface coated with the wax.
- the inorganic particles include oxides of metals and semimetals such as Al 2 O 3 , AlPO 4 , MgO, TiO 2 , ZrO 2 , Fe 2 O 3 , and montrillonite, attapulgite, bentonite, and palgigor Skytite, smectite, hoehmite, diatomaceous earth, clay, silica, limestone, kaolin, clay, talc (talc), feldspar, pearlite, sodium silicate, sodium aluminum silicate, magnesium aluminum silicate, silica hydrogel, silica gel, synthetic ) At least one selected from natural minerals such as silica, wet silica, alumina zeolite, molecular sieve, diatomaceous earth, reversed phase silica, organic particles such as processed and activated mineral inorganic oxides, low molecular polyethylene fine particles, and medium molecular polyethylene fine particles, and aluminum stearate It may include.
- metals and semimetals such as
- the content of the inorganic particles may be 5 to 20 parts by weight based on 100 parts by weight of the total content of the subject matter.
- the content of the inorganic particles may be 8 to 10 parts by weight based on 100 parts by weight of the total content of the subject matter.
- sufficient matting effect may be imparted to the coating layer including the composition including the inorganic particles.
- the subject may further comprise a first solvent.
- the first solvent may include at least one selected from an aromatic hydrocarbon solvent, a ketone solvent, and an ester solvent.
- the aromatic hydrocarbon solvent may include at least one selected from xylene and toluene
- the ketone solvent includes at least one selected from methyl ethyl ketone, methyl isobutyl ketone, diisobutyl ketone, and methyl amyl ketone
- the ester solvent may include at least one selected from ethyl acetate, butyl acetate and isobutyl acetate.
- the content of the first solvent may be 20 to 40 parts by weight based on 100 parts by weight of the total content of the subject.
- the subject may further comprise 1 to 15 parts by weight of the first additive based on 100 parts by weight of the total content of the subject.
- the first additive may include at least one selected from an antifoaming agent, a smoothing agent, a curing accelerator, and a settling stabilizer.
- the subject matter according to the present invention may further comprise 0.01 to 0.1 parts by weight of antifoaming agent, 1.0 to 1.5 parts by weight of smoothing agent, 0.5 to 1.0 part by weight of curing accelerator and 8 to 10 parts by weight of settling stabilizer, based on 100 parts by weight of the total content of the subject. Can be.
- the subject may further comprise 1 to 20 parts by weight of an elastomeric agent based on 100 parts by weight of the total content of the subject.
- the elasticizer imparts elasticity or self-healing effect to the subject to further impart elasticity to the coating layer including the composition, and can be self-healed by damage, thereby improving the cut resistance of the coating layer. .
- the elasticizer may include at least one selected from polybutadiene rubber, polystyrene rubber, polyurethane rubber, silicone modified urethane resin, silicone modified polyester resin, polyester modified silicone resin, and silicone modified epoxy resin.
- the subject matter can be prepared by mixing the modified polyester polyol resin, the first solvent and the first additive using a known stirrer, for example an impeller mixer, and then adding inorganic particles to the mixture.
- a known stirrer for example an impeller mixer
- the curing agent may include an isocyanate resin having at least two isocyanate groups and a second solvent.
- the isocyanate resin means a compound having at least two isocyanate groups in the molecular structure.
- the isocyanate group in the isocyanate resin reacts with a hydroxyl group in the modified polyester polyol resin (eg, a urethane reaction) to form a urethane bond (-NHCOO-), thereby forming a polymer network, thereby making the coating layer including the composition durable.
- a hydroxyl group in the modified polyester polyol resin eg, a urethane reaction
- -NHCOO- urethane bond
- the isocyanate resin is 2,4-toluene diisocyanate (2,4-TDI), 2,6-toluene diisocyanate (2,6-TDI), diphenylmethane-4,4'- diisocyanate (4,4 ' -MDI), diphenylmethane-2,4-diisocyanate (2,4-MDI), diphenylmethane-2,2'-diisocyanate (2,2'-MDI), 1,6-hexamethylene diisocyanate (1,6-HDI), 2,2,4 (2,4,4) -trimethylhexamethylene diisocyanate (2,2,4 (2,4,4) -TMDI), p-phenylenediisocyanate (PPDI ), 4,4'-dicyclohexylmethane diisocyanate (HMDI), m-xylene diisocyanate (XDI), isophorone diisocyanate (IPDI), 1,5-naphthal
- the isocyanate resin may include at least one selected from Burnock DN955 available from DIC, Desmodur N3300 and Bayhydur 3100 available from Bayer MaterialScience.
- the isocyanate resin may have an isocyanate group content (NCO%) of 5 to 23 mass%.
- the isocyanate group content may be represented by the following Equation 2:
- the content of the isocyanate resin may be 30 to 75 parts by weight based on 100 parts by weight of the total content of the curing agent.
- the isocyanate group content of the isocyanate resin is within the above range, it is possible to effectively react with the subject to form a solid polymer network, thereby improving the durability of the coating layer.
- the second solvent may include at least one selected from aromatic hydrocarbon solvents, ketone solvents and ester solvents.
- the aromatic hydrocarbon solvent may include at least one selected from xylene and toluene
- the ketone solvent includes at least one selected from methyl ethyl ketone, methyl isobutyl ketone, diisobutyl ketone, and methyl amyl ketone
- the ester solvent may include at least one selected from ethyl acetate, butyl acetate and isobutyl acetate.
- the content of the second solvent may be 20 to 70 parts by weight based on 100 parts by weight of the total content of the curing agent.
- the curing agent may include an isocyanate resin having at least two isocyanate groups and a second solvent.
- the curing agent may further include 0.1 to 1 parts by weight of the second additive based on 100 parts by weight of the total content of the curing agent.
- the second additive may include an antifouling agent.
- the curing agent according to the present invention may further include 0.3 to 0.5 parts by weight of an antifouling agent based on 100 parts by weight of the total content of the curing agent.
- the curing agent may be prepared by mixing the isocyanate resin, the second solvent and the second additive with a known stirrer, for example, an impeller mixer.
- the golf ball cover coating composition may be prepared by mixing the subject and the hardener for 10 minutes at room temperature at 200 to 300 rpm using a known stirrer, for example an impeller mixer.
- the golf ball cover coating composition may further comprise a diluent.
- the diluent adjusts the viscosity of the composition for coating the golf ball cover so that the composition can be effectively applied to the golf ball surface.
- the diluent may comprise methyl ethyl ketone.
- the weight ratio of the subject to the hardener may be 5: 1 to 1: 1.
- the weight ratio of the subject to the hardener may be 3: 1.
- the ratio of hydroxy group content (OH%) to isocyanate group content (NCO%) in the curing agent of the present invention according to the present invention may be 1: 0.8 to 1: 1.2.
- the weight ratio of the main agent to the hardener to the diluent may be 3: 1: 2, but is not limited thereto.
- the golf ball including the coating layer formed from the composition for coating the golf ball cover may have a glossiness measured at 60 ° by ASTM D523 using a Micro-TRI glossmeter available from BYK.
- the golf ball may have a glossiness of 1 to 10 measured at 60 ° by ASTM D523.
- the golf ball cover coating composition includes a subject comprising a modified polyester polyol resin and inorganic particles. Accordingly, since the golf ball including the coating layer including the composition is diffusely reflected from the outside light to reduce the gloss of the surface of the golf ball, it is possible to reduce the effect of external light on the player when used outdoors. In addition, the golf ball having a coating layer containing the composition has increased elasticity of the coating layer to improve the durability and cut resistance of the golf ball, so that damage to the surface due to external impact may be less, and thus the golf regardless of the use time. Maintain ball flying distance and spin performance.
- the coating layer 400 includes a top coat layer, a bottom coat layer interposed between the cover and the top coat layer, and a print layer interposed between the bottom coat layer and the top coat layer, and the top coat layer covers the golf ball. It may include a coating composition.
- the top coat layer according to the present invention may include a reaction product formed by the urethane reaction of the modified polyester polyol resin and the isocyanate resin in the curing agent of the subject.
- the undercoat layer serves to improve the adhesion between the print layer and the top coat layer formed on the cover 200 and the undercoat layer, and is mainly 1 to 20 ⁇ m by impregnation or spray spraying into an emulsion of water-soluble acrylated polyurethane. It may be formed to a thickness of.
- the printing layer is a layer on which a product name for recognizing a product and a general putting line (subsidiary line for aiming a ball during putting) are printed, and a company logo and product name are formed by a transfer printing, pad printing, inkjet, or the like method. Can be.
- the top coat layer provides aesthetic effect to the golf ball and at the same time serves to protect the golf ball surface from external impact.
- the top coat layer according to the present invention may be formed by applying the golf ball cover coating composition using a spray gun, and then dried at a temperature of 30 to 50 °C.
- the thickness of the top coat layer according to the present invention may be 5 ⁇ m to 20 ⁇ m.
- the golf ball coated with the coating layer comprising the composition for coating the golf ball cover has one color defined as x and y values in a CIE 1931 color space chromaticity diagram as shown in FIG. 7 or It may have a mixed color of one or more colors.
- the golf ball may have the color shown in FIGS. 3A, 3B, 4A, 5A, and 6A.
- the color of the golf ball may be white, yellow, light green, black, brown, orange, red, blue, green, pink, gray or a mixture of two or more thereof, but is not necessarily limited thereto.
- Color space Any color that is applicable to the art as a mixed color of one color and two or more colors selected as one point in a chromaticity diagram is possible.
- the golf ball may further include a component capable of emitting fluorescence or phosphorescence to improve aesthetics.
- the mixture of the main resin, the first solvent, and the first additive was added to an impeller mixer, followed by stirring at 1,000 rpm to obtain a main composition for the golf ball cover coating composition.
- the type and content of each component used in the preparation of the composition for the golf ball cover coating composition is shown in Table 1 below. In Table 1 below, the unit of content of each component is parts by weight.
- the isocyanate resin, the second solvent, and the second additive were added to the impeller mixer, followed by stirring at 1,000 rpm to obtain a curing agent for the composition for golf ball cover coating.
- the type and content of each component used in the preparation of the curing agent for the golf ball cover coating composition is shown in Table 2 below. In Table 2 below, the unit of content of each component is parts by weight.
- Curing agent for compositions for golf ball cover coating 1 Curing agent 2 for the composition for golf ball cover coating Curing agent for composition for golf ball cover coating 3
- Isocyanate Resin Isocyanurate-modified hexamethylene diisocyanate 40 - - Polyether modified hexamethylene diisocyanate - 11 50 Hexamethylene diisocyanate trimer - 59 Second additive Antifouling agent 0.4 0.4 0.4 Second solvent Aromatic Hydrocarbon Solvent toluene 19.6 14.6 19.6 Ketone Solvent Methyl Isobutyl Ketone 20 15 10 Ester Solvent n-butyl acetate 20 - 20 * Isocyanurate modified hexamethylene diisocyanate (Bayhydur 3100, Bayer MaterialScience, NCO%: 16 ⁇ 19%) * Polyether modified hexamethylene diisocyanate (Bayhydur 3300, Bayer MaterialScience, NCO%: 20 ⁇ 23%) * Hexamethylene di
- a mixture of the main composition for the golf ball cover coating composition, the hardener for the golf ball cover coating composition, and the diluent was added to an impeller mixer, and stirred at 1,000 rpm to obtain a golf ball cover coating composition.
- the type and content of each component used in preparing the golf ball cover coating composition are shown in Table 3 below. In Table 3 below, the unit of content of each component is parts by weight.
- composition for coating golf ball cover 1 Composition for coating golf ball covers 2
- Composition for coating golf ball covers 3 Composition for coating golf ball covers 4
- Each golf ball cover coating composition was coated on an ionomer resin with a thickness of about 20 ⁇ m using an automatic spray gun (Model-21, BINKS Corporation). Subsequently, the golf ball cover coating composition was dried at a temperature of 30 to 50 ° C. As a result, a specimen coated with a composition for coating a golf ball cover was obtained.
- the color and transparency of the golf ball cover coating composition, cover resin, prepared specimens used in each Example and Comparative Example are shown in Table 4 below.
- each of the golf ball cover coating compositions were coated on a golf ball printed with a putt line using an automatic spray gun (Model-21, BINKS Co.) at a thickness of about 20 ⁇ m. Subsequently, the golf ball cover coating composition was dried at a temperature of 30 to 50 ° C. As a result, a golf ball coated with the composition for golf ball cover coating was obtained.
- the composition of the golf ball cover coating and the golf ball used in each Example and Comparative Example are shown in Table 5 below.
- Fig. 2A is a photograph taken of the specimens prepared in Example 1 and Comparative Example 1 using a camera ((IXUS 145, Canon).
- Example 1 Comparative Example 1, Example 1 and comparison in the clockwise direction from the upper right Corresponds to the specimen prepared in Example 1.
- Example 2B is a photograph taken of the specimens prepared in Example 2 and Comparative Example 2 using a camera (IXUS 145, Canon). Corresponding to the specimen prepared in Example 2, Comparative Example 2, Example 2 and Comparative Example 2 in the clockwise direction from the upper right.
- 2C is a photograph taken of the specimen in Example 3 and Comparative Example 3 using a camera (IXUS 145, Canon). Corresponding to the specimen in Example 3, Comparative Example 3, Example 3 and Comparative Example 3 clockwise from the upper right.
- 2D is a photograph taken of the specimens prepared in Example 4 and Comparative Example 4 using a camera (IXUS 145, Canon). Corresponding to the specimen prepared in Example 4, Comparative Example 4, Example 4 and Comparative Example 4 in the clockwise direction from the upper right.
- the specimen coated with the composition for coating a golf ball cover prepared in Examples 1 to 4 having a glossiness of 5.5 or less irrespective of the color and transparency of the specimen was glossy. It was confirmed that the reflectance against external light was very small compared to the specimen coated with the composition for golf ball cover coating prepared in Comparative Examples 1 to 4 having more than 80.
- FIG. 3A is a photograph of a golf ball manufactured in Examples 5 and 6 using a camera (IXUS 145, Canon). Corresponding to the golf ball produced in Example 5 and the golf ball produced in Example 6 in order from the left.
- 3B is a photograph of the golf balls produced in Comparative Examples 5 and 6 using a camera (IXUS 145, Canon). Corresponding to the golf ball manufactured in Comparative Example 5 and the golf ball manufactured in Comparative Example 6 in order from the left.
- the golf balls prepared in Examples 5 and 6 have a smaller reflectance against external light than those produced in Comparative Examples 5 and 6 and are printed on the golf ball surface. The putt line was clearly visible.
- FIG. 4a shows a golf ball manufactured in Example 5 with a 9-iron, a professional athlete hits the company logo portion three times at a speed of 75 mph, and then used the camera (IXUS 145, Cannon) to surface the golf ball.
- FIG. 4B is a picture taken using a digital electron microscope (AM-313, Dino-lite, magnification: # 10) of a portion indicated by a red circle in FIG. 4A.
- FIG. 4C shows four parts (laser + optical, optical, laser) using a three-dimensional (3D) electron microscope (VK-X200, Keyence, magnification: 100) in a portion indicated by a red circle in FIG. 4B. Intensity, height).
- VK-X200 three-dimensional
- FIG. 4D is a diagram schematically illustrating a process of measuring the depth of the damaged portion of the portion indicated by the red circle in FIG. 4B using a 3D electron microscope (VK-X200, Keyence, magnification: 100).
- VK-X200 3D electron microscope
- the photograph shows a process of displaying a portion of the damaged portion to be measured for depth after photographing in the laser intensity mode.
- the upper right picture of FIG. 4D corresponds to the 3D mode of the picture taken in the laser intensity mode.
- the width (Horz. Dist.) And the height (Hght. Diff.) Of the portion indicated by the solid yellow line in the top left photo of FIG. 4D are photographs.
- FIG. 5A shows a golf ball manufactured in Example 7 with a 9-iron, after a professional athlete strikes the company logo portion three times at a speed of 75 mph, and photographs the surface of the golf ball using a camera (IXUS 145, Cannon).
- FIG. 5B is a photograph taken using a digital electron microscope (AM-313, Dino-lite, magnification: # 10) of a portion indicated by a red circle in FIG. 5A.
- Figure 5c is a photograph taken in four modes (laser + optical, optical, laser intensity, height) using a 3D electron microscope (VK-X200, Keyence, magnification: ⁇ 100) of the portion shown in the red circle of Figure 5b to be.
- FIG. 5D is a diagram schematically illustrating a process of measuring a damage depth of a portion indicated by a red circle in FIG. 5B using a 3D electron microscope (VK-X200, Keyence, magnification: x100).
- VK-X200 Keyence, magnification: x100
- the photograph shows a process of displaying a portion of the damaged portion to be measured for depth after photographing in the laser intensity mode.
- the picture corresponds to the 3D mode of the picture taken in the laser intensity mode.
- the width (Horz. Dist.) And the height (Hght. Diff.) Of the portion indicated by the solid yellow line in the top left photo of FIG. 5D are photographs illustrating the process of calculating.
- FIG. 6a shows a golf ball manufactured in Comparative Example 7 with a 9-iron, after a professional athlete strikes the company logo portion three times at a speed of 75 mph, and photographs the surface of the golf ball using a camera (IXUS 145, Cannon).
- FIG. 6B is an enlarged photograph of a portion indicated by a red circle in FIG. 6A using a digital electron microscope (AM-313, Dino-lite, magnification: ⁇ 10).
- FIG. 6C is a photograph taken in 4 modes (laser + optical, optical, laser intensity, height) using a 3D electron microscope (VK-X200, Keyence, magnification: x100) of the portion indicated by a red circle in FIG. 6B. to be.
- VK-X200 3D electron microscope
- FIG. 6D is a diagram schematically illustrating a process of measuring a damage depth of a portion indicated by a red circle in FIG. 6B using a 3D electron microscope (VK-X200, Keyence, magnification: x100).
- the photograph is a photograph illustrating a process of displaying a region to be measured for depth among damaged portions after photographing in the laser intensity mode.
- the upper right picture of FIG. 6D corresponds to the 3D mode of the picture taken in the laser intensity mode.
- the width (Horz. Dist.) And the height (Hght. Diff.) Of the portion indicated by the solid yellow line of the upper left photo of FIG. 6D are photographs showing the process of calculating.
- Example 5 Comparative Example 7 Visual observation and tactile measurement Good Good Bad Depth of damage 38.41 ⁇ m 46.80 ⁇ m 66.90 ⁇ m
- golf balls prepared in Examples 5 and 7 are more cut resistant than golf balls prepared in Comparative Example 7. This excellence could be confirmed. Therefore, the golf balls prepared in Examples 5 and 7 can be seen that the modified polyester polyol resin has an excellent effect of increasing the viscoelasticity of the coating layer and thereby protecting the cover from the iron shot of strong external force.
- Example 1 for the golf ball cover coating composition 1 included in the composition for coating the golf ball cover used in the manufacture of the coated specimen of Example 1 changed the silica particles of inorganic particles to a different specific surface area as shown in Table 9 below Except for the composition 11 to 15 for the golf ball cover coating was prepared in the same manner.
- the inorganic particles used in the composition for coating the golf ball cover and the viscosity of the prepared composition are shown in Table 9 below.
- Silica Particle Size [ ⁇ m] Silica Specific Surface Area [m 2 / g] Silica content [part by weight] Workability Composition for coating golf ball cover 11 5 Less than 50 20 O Composition for coating golf ball cover 12 1-1.7 55 12 ⁇ Composition for coating golf ball cover 13 2.1 220 9.5 X Composition for coating golf ball cover 14 1 ⁇ 2 150 10 O Composition for coating golf ball cover 15 2.1 170 10 O
- composition 13 for the golf ball cover coating was not suitable for use in spray coating because of poor workability due to the increase in viscosity.
- composition and cover resin used to prepare the specimen are shown in Table 10 below. As described above, the specimen of Comparative Example 13 did not allow uniform coating due to an increase in the viscosity of the composition.
- the composition and the uncoated golf ball used in the manufacture of the golf ball are shown in Table 11 below. As described above, the golf ball of Comparative Example 16 was unable to uniformly coat due to an increase in the viscosity of the coating composition.
- Evaluation example 3-1 Glossiness Measurement of Specimen
- Comparative Example 13 was excluded from the measurement because the surface does not have a uniform coating.
- Evaluation example 3-2 Glossiness Evaluation of Golf Balls
- Comparative Example 16 was excluded from the evaluation because the surface did not have a uniform coating.
- the golf balls of Examples 13 to 14 is reduced compared to the golf balls of Comparative Examples 14 to 16, the appearance damage is reduced and the depth of the damage area is also improved to improve the cut resistance.
- Evaluation example 5 measuring the distance of a golf ball
- the coated golf balls prepared in Examples 13 to 14 and Comparative Examples 14 to 16 were hit at a head speed of 90 mph using a striking machine and the flying distance was measured using a flying distance measuring instrument.
- Hitting machine of Golf Laboratories was used as a hitting machine, and it was measured by Trackman, a flying distance measuring device using Doppler effect. Some of the measurement results are shown in Table 15 below.
- the golf ball of Example 13 showed an improved flying distance compared to the golf ball of Comparative Example 15. Meanwhile, the golf ball of Comparative Example 16 did not have a uniform coating on the surface, and thus the flying distance was greatly reduced due to the irregular surface.
- the coating layer formed from the composition may have a low reflectance against external light and a low gloss. Accordingly, the golf ball including the coating layer has almost no gloss on the surface, thereby reducing the influence of external light on the player when used outdoors and improving the concentration and play power of the player.
- the composition for coating the golf ball cover uses a theme including a modified polyester polyol resin having excellent flexibility
- the coating layer formed from the composition is excellent in impact resistance, cut resistance, scratch resistance and rebound elasticity. Accordingly, the golf ball including the coating layer may be less damage to the surface by the external impact, thereby maintaining the flying distance and spin performance of the golf ball regardless of the use time.
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Abstract
Description
성분 | 골프공 커버 코팅용 조성물용 주제 1 | 골프공 커버 코팅용 조성물용 주제 2 | 골프공 커버 코팅용 조성물용 주제 3 | ||
주제 수지 | 카프로락톤 변성 폴리에스테르 폴리올 수지 | 48 | - | - | |
폴리에스테르 폴리올 수지 | - | 53 | 50 | ||
제1첨가제 | 소광제 | 9 | - | 9 | |
소포제 | 0.01 | 0.01 | 0.01 | ||
평활제 | 1.2 | 1.0 | 1.2 | ||
경화촉진제 | 0.6 | - | 0.6 | ||
침강안정제 | 6 | - | 8 | ||
제1용제 | 방향족 탄화수소계 용제 | 자일렌 | - | 10 | - |
톨루엔 | 10 | 10 | 8 | ||
케톤계 용제 | 메틸이소부틸케톤 | 10 | 10 | 8 | |
에스테르계 용제 | n-부틸 아세테이트 | 5 | - | 5 | |
에틸 아세테이트 | 10.19 | 15.99 | 10.19 | ||
*카프로락톤 변성 폴리에스테르 폴리올 수지 (14058수지, 조광페인트, 중량평균 분자량: 11,000~12,000 g/mol, OH%: 1.5~2.0%, 고형분 함량: 75~80 %)* 폴리에스테르 폴리올 수지 (14040수지, 조광페인트, 중량평균 분자량: 6,500~7,500 g/mol, OH%: 2.5~3.0%, 고형분 함량: 75~80 %)* 소광제: 실리카 입자 (Nipsil E-220A, Tosoh사, 평균 입경: 1~2 ㎛)* 소포제 (BYK065, BYK)* 평활제 (BYK378, BYK306, BYK)* 경화촉진제: 디부틸주석라우레이트* 침강안정제 (MONORAL 5505, HS-CHEM사) |
골프공 커버 코팅용 조성물용 경화제 1 | 골프공 커버 코팅용 조성물용 경화제 2 | 골프공 커버 코팅용 조성물용 경화제 3 | |||
이소시아네이트 수지 | 이소시아누레이트 변성 헥사메틸렌디이소시아네이트 | 40 | - | - | |
폴리에테르 변성 헥사메틸렌디이소시아네이트 | - | 11 | 50 | ||
헥사메틸렌디이소시아네이트 트라이머 | - | 59 | |||
제2첨가제 | 방오제 | 0.4 | 0.4 | 0.4 | |
제2용제 | 방향족 탄화수소계 용제 | 톨루엔 | 19.6 | 14.6 | 19.6 |
케톤계 용제 | 메틸이소부틸케톤 | 20 | 15 | 10 | |
에스테르계 용제 | n-부틸 아세테이트 | 20 | - | 20 | |
* 이소시아누레이트 변성 헥사메틸렌디이소시아네이트 (Bayhydur 3100, Bayer MaterialScience사, NCO%: 16~19%)* 폴리에테르 변성 헥사메틸렌디이소시아네이트 (Bayhydur 3300, Bayer MaterialScience사, NCO%: 20~23%)* 헥사메틸렌디이소시아네이트 트라이머 (Burnock DN955, DIC사, NCO%: 5~8%)* 방오제: ADDITIVE TI(Borchers사) 및 OF(Borchers사)의 혼합물 (중량비: 50:50) |
골프공 커버 코팅용 조성물 1 | 골프공 커버 코팅용 조성물 2 | 골프공 커버 코팅용 조성물 3 | 골프공 커버 코팅용 조성물 4 | |
골프공 커버 코팅용 조성물용 주제 | 1 | 1 | 2 | 3 |
골프공 커버 코팅용 조성물용 경화제 | 1 | 2 | 3 | 3 |
주제:경화제:희석제(중량비) | 3:1:2 | 3:1:2 | 3:1:2 | 3:1:2 |
OH%:NCO% | 1: 1.06 | 1:1.03 | 1:0.96 | 1:1.03 |
*희석제: 메틸에틸케톤 |
골프공 커버 코팅용 조성물 | 커버 수지 | 시편의 색/투명도 | |
실시예 1 | 1 | 이오노머 수지 1 | 노란색/불투명 |
실시예 2 | 1 | 이오노머 수지 2 | 노란색/반투명 |
실시예 3 | 1 | 이오노머 수지 3 | 백색/불투명 |
실시예 4 | 1 | 표준 시편 | 백색/불투명 |
비교예 1 | 3 | 이오노머 수지 1 | 노란색/불투명 |
비교예 2 | 3 | 이오노머 수지 2 | 노란색/반투명 |
비교예 3 | 3 | 이오노머 수지 3 | 백색/불투명 |
비교예 4 | 3 | 표준 시편 | 백색/불투명 |
*이오노머 수지 1 (배합비: Surlyn (Dupont사) 100 중량부에 대하여, 이산화티탄(Dupont사) 2 중량부 및 안료 (노란색, 클라리언트) 0.2 중량부)*이오노머 수지 2 (배합비: Surlyn (Dupont사) 100 중량부에 대하여, 이산화티탄(Dupont사) 0.1 중량부 및 안료 (노란색, 클라리언트) 0.1 중량부)*이오노머 수지 3 (배합비: Surlyn (Dupont사) 100 중량부에 대하여, 이산화티탄(Dupont사) 2 중량부)*표준 시편 (코팅 시험 시편, 조광페인트) |
골프공 커버 코팅용 조성물 | 골프공 | |
실시예 5 | 1 | 골프공 A |
실시예 6 | 1 | 골프공 B |
실시예 7 | 2 | 골프공 C |
비교예 5 | 3 | 골프공 A |
비교예 6 | 3 | 골프공 B |
비교예 7 | 4 | 골프공 D |
*골프공 A (크리스탈, ㈜볼빅, 노란색)*골프공 B (크리스탈, ㈜볼빅, 오렌지색)*골프공 C (크리스탈, ㈜볼빅, 분홍색)*골프공 D (크리스탈, ㈜볼빅, 녹색) |
광택도 | |
실시예 1 | 5~5.5 |
실시예 2 | 4.3~4.4 |
실시예 3 | 4 |
실시예 4 | 4 |
비교예 1 | 96 |
비교예 2 | 80~85 |
비교예 3 | 95 |
비교예 4 | 95 |
실시예 5 | 양호 |
실시예 6 | 양호 |
비교예 5 | 불량 |
비교예 6 | 불량 |
실시예 5 | 실시예 7 | 비교예 7 | |
육안 관찰 및촉감 측정 | 양호 | 양호 | 불량 |
손상 부위의 깊이 | 38.41 ㎛ | 46.80 ㎛ | 66.90 ㎛ |
실리카 입경[㎛] | 실리카 비표면적[m2/g] | 실리카함량[중량부] | 작업성 | |
골프공 커버 코팅용 조성물 11 | 5 | 50 미만 | 20 | O |
골프공 커버 코팅용 조성물 12 | 1~1.7 | 55 | 12 | ◎ |
골프공 커버 코팅용 조성물 13 | 2.1 | 220 | 9.5 | X |
골프공 커버 코팅용 조성물 14 | 1~2 | 150 | 10 | O |
골프공 커버 코팅용 조성물 15 | 2.1 | 170 | 10 | O |
골프공 커버 코팅용 조성물 | 커버수지 | |
비교예 11 | 11 | 표준시편 |
비교예 12 | 12 | 표준시편 |
비교예 13 | 13 | 표준시편 |
실시예 11 | 14 | 표준시편 |
실시예 12 | 15 | 표준시편 |
골프공 커버 코팅용 조성물 | 골프공 | |
비교예 14 | 11 | 골프공 A |
비교예 15 | 12 | 골프공 A |
비교예 16 | 13 | 골프공 A |
실시예 13 | 14 | 골프공 A |
실시예 14 | 15 | 골프공 A |
시편 광택도 | |
비교예 11 | 60 |
비교예 12 | 3.1 |
실시예 11 | 2.4 |
실시예 12 | 2.5 |
골프공 광택도 | |
비교예 14 | 불량 |
비교예 15 | 불량 |
실시예 13 | 양호 |
실시예 14 | 양호 |
육안 관찰 및 촉감 측정 | 손상 부위의 깊이 | |
비교예 14 | 불량 | 38.56 um |
비교예 15 | 불량 | 32.29um |
비교예 16 | 불량 | 36.83 um |
실시예 13 | 양호 | 15.33 um |
실시예 14 | 양호 | 15.27 um |
비행거리 [meter] | |
비교예 15 | 183.2 |
비교예 16 | 182.4 |
실시예 13 | 183.7 |
Claims (20)
- 주제(主劑) 및 경화제를 포함하고,상기 주제는 변성(modified) 폴리에스테르 폴리올 수지 및 무기 입자를 포함하고,상기 경화제는 적어도 2개의 이소시아네이트기를 갖는 이소시아네이트 수지를 포함한, 골프공 커버 코팅용 조성물.
- 제1항에 있어서,상기 변성 폴리에스테르 폴리올 수지는 카프로락톤 변성 폴리에스테르 폴리올, 1,3-부타디엔 변성 폴리에스테르 폴리올 및 폴리테트라메틸렌글리콜 변성 폴리에스테르 폴리올 중에서 선택된 적어도 1종을 포함하는, 골프공 커버 코팅용 조성물.
- 제1항에 있어서,상기 변성 폴리에스테르 폴리올 수지는 중량평균 분자량이 5,000 내지 25,000 g/mol이고, 히드록시기 함유량(OH%)이 1.0 내지 5.0 질량%인, 골프공 커버 코팅용 조성물.
- 제1항에 있어서,상기 변성 폴리에스테르 폴리올 수지의 함량은 상기 주제의 총 함량 100 중량부에 대하여 25 내지 85 중량부인, 골프공 커버 코팅용 조성물.
- 제1항에 있어서,상기 무기 입자는 평균 입경이 1 내지 15 ㎛인 분말 형태의 실리카 입자를 포함하는, 골프공 커버 코팅용 조성물.
- 제5항에 있어서,상기 실리카 입자의 비표면적인 100 내지 200 m2/g인, 골프공 커버 코팅용 조성물.
- 제1항에 있어서,상기 무기 입자의 함량은 상기 주제의 총 함량 100 중량부에 대하여 5 내지 20 중량부인, 골프공 커버 코팅용 조성물.
- 제1항에 있어서,상기 주제는 방향족 탄화수소계 용제, 케톤계 용제 및 에스테르계 용제 중에서 선택된 적어도 1종을 포함한 제1용제를 더 포함하는, 골프공 커버 코팅용 조성물.
- 제1항에 있어서,상기 주제는 폴리부타디엔 고무, 폴리스티렌 고무, 폴리우레탄 고무, 실리콘 변성 우레탄 수지, 실리콘 변성 폴리에스테르 수지, 폴리에스테르 변성 실리콘 수지, 실리콘 변성 에폭시 수지 중에서 선택된 적어도 1종을 포함한 탄성 부여제를 더 포함하는, 골프공 커버 코팅용 조성물.
- 제1항에 있어서,상기 이소시아네이트 수지는 2,4-톨루엔 디이소시아네이트(2,4-TDI), 2,6-톨루엔디이소시아네이트(2,6-TDI), 디페닐메탄-4,4'-디이소시아네이트(4,4'-MDI), 디페닐메탄-2,4-디이소시아네이트(2,4-MDI), 디페닐메탄-2,2'-디이소시아네이트(2,2'-MDI), 1,6-헥사메틸렌디이소시아네이트(1,6-HDI), 2,2,4(2,4,4)-트리메틸헥사메틸렌디이소시아네이트(2,2,4(2,4,4)-TMDI), ρ-페닐렌디이소시아네이트(PPDI), 4,4'-디사이클로헥실메탄디이소시아네이트(HMDI), m-자일렌디이소시아네이트(XDI), 이소포론디이소시아네이트(IPDI), 1,5-나프탈렌디이소시아네이트(NDI), 트란스-1,4-사이클로헥실디이소시아네이트(CHDI), 이소시아누레이트 변성 헥사메틸렌디이소시아네이트 및 폴리에테르 변성 헥사메틸렌디이소시아네이트 중에서 선택된 적어도 1종을 포함하는, 골프공 커버 코팅용 조성물.
- 제1항에 있어서,상기 이소시아네이트 수지는 이소시아네이트기 함유량(NCO%)이 5 내지 23 질량%인, 골프공 커버 코팅용 조성물.
- 제1항에 있어서,상기 이소시아네이트 수지의 함량은 상기 경화제의 총 함량 100 중량부에 대하여 30 내지 75 중량부인, 골프공 커버 코팅용 조성물.
- 제1항에 있어서,상기 경화제는 방향족 탄화수소계 용제, 케톤계 용제 및 에스테르계 용제 중에서 선택된 적어도 1종을 포함한 제2용제를 더 포함하는, 골프공 커버 코팅용 조성물.
- 제1항에 있어서,상기 주제 대 상기 경화제의 중량비는 5:1 내지 1:1인, 골프공 커버 코팅용 조성물.
- 제1항에 있어서,상기 주제로서 카프로락톤 변성(modified) 폴리에스테르 폴리올 수지를 포함하고,상기 무기 입자로서 평균 입경이 1 내지 15 ㎛인 분말 형태의 실리카 입자를 포함하고,상기 실리카 입자의 비표면적인 100 내지 200 m2/g이며,상기 경화제는 적어도 2개의 이소시아네이트기를 갖는 이소시아네이트 수지를 포함하며,하이드록시기 함유량(OH%):이소시아네이트기 함유량(NCO%)의 비율이 1:1.03~1:1.06인, 골프공 커버 코팅용 조성물.
- 제1항에 있어서,상기 카프로락톤 변성(modified) 폴리에스테르 폴리올 수지가 지방족 다염기산, 지방족 다가 알코올, 및 카프로락톤에서 유래된 반복단위로 이루어진 지방족 폴리에스테르 폴리올 수지인, 골프공 커버 코팅용 조성물.
- 제1항 내지 제16항 중 어느 한 항에 따른 골프공 커버 코팅용 조성물을 사용한 골프공.
- 제17항에 있어서,ASTM D523 법에 의해 60ㅀ에서 측정된 광택도가 0.1 내지 20 인, 골프공.
- 제17항에 있어서,ASTM D523 법에 의해 60ㅀ에서 측정된 광택도가 0.1 내지 5인, 골프공.
- 제17항에 있어서,CIE 1931 색 공간(color space) 색도 분포표(chromaticity diagram)에서 x 및 y 값으로 정의되는 하나의 색 또는 하나 이상의 색의 혼합색을 가지는, 골프공.
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JP2017552174A JP6434654B2 (ja) | 2015-12-09 | 2016-12-09 | ゴルフボール・カバーコーティング用組成物、及びそれを使用したゴルフボール |
CN201680020650.XA CN107922782B (zh) | 2015-12-09 | 2016-12-09 | 涂布高尔夫球外壳用组合物及使用所述组合物的高尔夫球 |
US15/563,145 US10195487B2 (en) | 2015-12-09 | 2016-12-09 | Golf ball cover coating composition and golf ball using the same |
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